-int PMPI_Type_struct(int count, int* blocklens, MPI_Aint* indices, MPI_Datatype* old_types, MPI_Datatype* new_type) {
+int PMPI_Type_struct(int count, const int* blocklens, const MPI_Aint* indices, const MPI_Datatype* old_types,
+ MPI_Datatype* new_type)
+{